February 26, 1870

Purchase To Read More

Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

Print + Digital All Access Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Print, Online and Tablet access to the next 12 new issues to be released as well as Online access to archives back to 1845. $99.00

Features

Wood Molding Machine, Improvement in Steam Hammers

Platinized Looking-Glasses

By C. Widemann

Yaupon Teas of Carolina—Mate of Paraguay

By H. E. Colton

Guatemala, Its Inhabitants and Products-- Advice to Emigrants

By I. Cantini

English and American Iron-Clads Compared

[From the Army and Navy Journal.]

The Eagle Carpet Stretcher

How to Hitch Three Horses to One Plow

A Journey with a Raft

From the Building News

Improved Patent Vertical Drill

The Wages of Machinery

French Experiments with Liquid Fuel

Waste of Labor in Building

The Water Wheel Tests at Lowell

Positive Philosophy

Liebig on Fermentation

A Mile a Minute

The Economy of Steam Engines

Scientific Intelligence- February 26, 1870

Recent American and Foreign Patents- February 26, 1870

Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.

Patent Office Decisions- February 26, 1870

Answers to Correspondents- February 26, 1870

Official List of Patents- February 26, 1870

Issued by the United States Patent Office.
FOR THE WEEK ENDING FEB. 15,1870.
Reported Officially for the Scientific American.

Departments

Letters

Correspondence- February 26, 1870

Recommended

New Books and Publications- February 26, 1870

Departments

Business and Personal- February 26, 1870

Purchase To Read More

Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

Print + Digital All Access Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Print, Online and Tablet access to the next 12 new issues to be released as well as Online access to archives back to 1845. $99.00

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific American maintains a strict policy of editorial independence in reporting developments in science to our readers.